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ASME B36.19 Pipe Dimension, Wall Thickness and Weight

Views: 6 Author: Monica Publish Time: 2026-01-28 Origin: Site

ASME B36.19 is a standard titled “Welded and Seamless Wrought Stainless Steel Pipe” that standardizes the dimensions for stainless steel pipes designed for high or low temperatures and pressures within piping systems, specifically distinguishing "pipe" from "tube".

It is a standard that specifies the dimensions, wall thicknesses, weights, and tolerances for welded and seamless wrought stainless steel pipes, covering various schedules such as 5S, 10S, 40S, and 80S, along with nominal pipe sizes ranging from 1/8 inch to 30 inches.

Dimensions of Stainless Steel Pipe Nominal Weights (Masses), PLain End
NPS (DN)	Outside Diameter, inch (mm)	Schedule No	Wall Thickness inch (mm)	Plain End Weight (Mass) Ib/ft(kg/m)
1/8(6)	0.405(10.29)	5S 10S 40S 80S 160S	...[Note(1)] 0.049(1.24)[Note (1)] 0.068(1.73) 0.095(2.41) 0.124(3.15）	... 0.19(0.28) 0.24(0.37) 0.31(0.47) 0.37(0.55)
1/4(8)	0.540(13.72)	5S 10S 40S 80S 160S	... [Note (1)] 0.065(1.65)[Note(1)] 0.088(2.24) 0.119 (3.02) 0.145 (3.68）	... 0.33(0.49) 0.43(0.63) 0.54(0.80) 0.61(0.91)
3/8(10)	0.675(17.14)	5S 10S 40S 80S 160S	... [Note(1)] 0.065(1.65)[Note(1)] 0.091 (2.31) 0.126(3.20) 0.158(4.01)	... 0.42(0.63) 0.57 (0.84) 0.74(1.10) 0.87(1.30)
1/2(15)	0.840(21.34)	5S 10S 40S 80S 160S	0.065(1.65)[Note(1)] 0.083(2.11)[Note(1)] 0.109(2.77) 0.147(3.73） 0.188(4.78）	0.54(0.80) 0.67(1.00) 0.85(1.27) 1.09(1.62) 1.31(1.95)
3/4(20)	1.050(26.67)	5S 10S 40S 80S 160S	0.065(1.65)[Note(1)] 0.083(2.11)[Note(1)] 0.113(2.87） 0.154(3.91) 0.219(5.56)	0.68(1.02) 0.86(1.28） 1.13(1.68) 1.48(2.19) 1.95(2.89)
1(25)	1.315(33.40)	5S 10S 40S 80S 160S	0.065(1.65)[Note(1)] 0.109(2.77)[Note(1)] 0.133 (3.38) 0.179(4.55） 0.250(6.35）	0.87(1.29） 1.41(2.09） 1.68 (2.50) 2.17(3.24） 2.85(4.24）
1 1/4 (32)	1.660 (42.16)	5S 10S 40S 80S 160S	0.065(1.65)[Note(1)] 0.109(2.77)[Note(1)] 0.140(3.56) 0.191(4.85) 0.250(6.35)	1.11(1.65) 1.81(2.69) 2.27(3.39） 3.00 (4.46) 3.77 (5.61)
1 1/2 (40)	1.900(48.26)	5S 10S 40S 80S 160S	0.065(1.65)[Note(1)] 0.109 (2.77)[Note(1)] 0.145(3.68) 0.200(5.08) 0.281(7.14)	1.28(1.90） 2.09(3.11) 2.72 (4.05) 3.63(5.41) 4.86(7.24)
2(50)	2.375(60.32)	5S 10S 40S 80S 160S	0.065(1.65)[Note(1)] 0.109(2.77)[Note(1)] 0.154(3.91) 0.218(5.54) 0.344(8.74)	1.61(2.39) 2.64(3.93) 3.66(5.44) 5.03(7.48) 7.47(11.12)
2 1/2(65)	2.875(73.02)	5S 10S 40S 80S 160S	0.083(2.11)[Note(1)] 0.120(3.05)[Note(1)] 0.203 (5.16) 0.276(7.01) 0.375(9.52)	2.48(3.69) 3.53(5.26) 5.80(8.64) 7.67(11.41) 10.02(14.91)
3(80)	3.500(88.90)	5S 10S 40S 80S 160S	0.083(2.11)[Note(1)] 0.120(3.05)[Note(1)] 0.216(5.49) 0.300(7.62) 0.438(11.13)	3.03 (4.52) 4.34(6.46) 7.58(11.29) 10.26(15.27 14.34(21.35)
3 1/2(90)	4.000(101.60)	5S 10S 40S 80S	0.083(2.11)[Note(1)] 0.120(3.05)[Note(1)] 0.226(5.74) 0.318(8.08)	3.48(5.18) 4.98 (7.41) 9.12(13.57) 12.52(18.64)
4(100)	4.500(114.30)	5S 10S 40S 80S 160S	0.083(2.11)[Note(1)] 0.120(3.05)[Note(1)] 0.237(6.02) 0.337(8.56) 0.531(13.49)	3.92(5.84) 5.62(8.37) 10.80(16.08) 15.00 (22.32) 22.53(33.54)
5(125)	5.563(141.30)	5S 10S 40S 80S 160S	0.109(2.77)[Note(1)] 0.134(3.40)[Note(1)] 0.258(6.55) 0.375(9.52) 0.625(15.88)	6.36(9.46) 7.78(11.56) 14.63(21.77) 20.80(30.94) 32.99(49.12)
6(150)	6.625(168.28)	5S 10S 40S 80S 160S	0.109(2.77)[Note(1)] 0.134(3.40)[Note(1)] 0.280(7.11) 0.432(10.97) 0.719(18.26)	7.59(11.31) 9.30(13.83) 18.99(28.26) 28.60(42.56) 45.39 (67.56)
8(200)	8.625(219.08)	5S 10S 40S 80S	0.109(2.77)[Note(1)] 0.148(3.76)[Note(1)] 0.322(8.18) 0.500(12.70)	9.92(14.78) 13.41(19.97) 28.58(42.55) 43.43(64.64)
10(250)	10.75(273.0)	5S 10S 40S 80S	0.134(3.40)[Note(1)] 0.165(4.19)[Note(1)] 0.365(9.27) 0.500(12.70)[Note(2)]	15.21(22.61) 18.67(27.78) 40.52(60.29) 54.79(81.53)
12(300)	12.75(323.8)	5S 10S 40S 80S	0.156(3.96)[Note(1)] 0.180(4.57)[Note(1)] 0.375(9.52)[Note(2)] 0.500(12.70)[Note(2)]	21.00(31.24) 24.19(35.98) 49.61(73.79) 65.48(97.44)
14(350)	14.00(355.6)	5S 10S 40S 80S	0.156(3.96)[Note(1)] 0.188(4.78)[Notes(1),(2)] 0.375(9.52)[Note(2)] 0.500(12.70)[Note(2)]	23.09(34.34) 27.76(41.36) 54.62(81.25) 72.16(107.40)
16(400)	16.00(406.4)	5S 10S 40S 80S	0.165(4.19)[Note(1)] 0.188(4.78)[Notes(1),(2)] 0.375(9.52)[Note(2)] 0.500(12.70)[Note(2)]	27.93(41.56) 31.78(47.34) 62.64(93.18) 82.85(123.31)
18(450)	18.00(457.2)	5S 10S 40S 80S	0.165(4.19)[Note(1)] 0.188(4.78)[Notes(1),(2)] 0.375(9.52)[Note(2)] 0.500(12.70)[Note(2)]	31.46(46.81) 35.80(53.33) 70.65(105.17) 93.54(139.16)
20(500)	20.00(508.0)	5S 10S 40S 80S	0.188(4.78)[Note(1)] 0.218(5.54)[Notes(1),(2)] 0.375(9.52)[Note(2)] 0.500(12.70)[Note(2)]	39.82(59.32) 46.10(68.65) 78.67(117.03) 104.23(155.13)
22(550)	22.00(558.8)	5S 10S 40S 80S	0.188(4.78)[Note(1)] 0.218(5.54)[Notes(1),(2)] ... ...	43.84(65.31) 50.76(75.59) ... ...
24(600)	24.00(609.6)	5S 10S 40S 80S	0.218(5.54)[Note(1) 0.250(6.35)[Note(1)] 0.375(9.52)[(Note2)] 0.500(12.70)[Note(2)]	55.42(82.53) 63.47(94.47) 94.71(140.89) 125.61(186.95)
30(750)	30.00(762.0)	5S 10S 40S 80S	0.250(6.35)[Note(1)] 0.312(7.92)[Note(1)] ... ...	79.51(118.34) 99.02(147.29) ... ...

GENERAL NOTES:

(a) 1 in. = 25.4 mm.

(b) 1 lb/t = 1.4882 kg/m.

(c) Weights (masses) are given in pounds per linear foot (kilograms per meter) and are for carbon steel pipe with plain ends.

(d) The different grades of stainless steel permit considerable variations in weight (mass). The ferritic stainless steels may be about 5% less, and the austenitic stainless steels about 2% greater, than the values shown in this table, which are based on weights (masses) for carbon steel.

NOTES:

(1) These wall thicknesses do not permit threading in accordance with ASME B1.20.1.

(2) These dimensions do not conform to ASME B36.10.

ASME B36.19 Nominal Dimensions of Pipe (mm)

Nominal Pipe Size		OD (mm) outside diameter	Sch5S （mm）	Sch10S （mm）	Sch40S （mm）	Sch80S （mm）	Sch160S （mm）
DN	NPS	OD (mm) outside diameter	Sch5S （mm）	Sch10S （mm）	Sch40S （mm）	Sch80S （mm）	Sch160S （mm）
6	1/8	10.3		1.24	1.73	2.41	3.15
8	1/4	13.7		1.65	2.24	3.02	3.68
10	3/8	17.1		1.65	2.31	3.2	4.01
15	1/2	21.3	1.65	2.11	2.77	3.73	4.78
20	3/4	26.7	1.65	2.11	2.87	3.91	5.56
25	1	33.4	1.65	2.77	3.38	4.55	6.35
32	1 1/4	42.2	1.65	2.77	3.56	4.85	6.35
40	1 1/2	48.3	1.65	2.77	3.68	5.08	7.14
50	2	60.3	1.65	2.77	3.91	5.54	8.74
65	2 1/2	73	2.11	3.05	5.16	7.01	9.52
80	3	88.9	2.11	3.05	5.49	7.62	11.13
90	3 1/2	101.6	2.11	3.05	5.74	8.08
100	4	114.3	2.11	3.05	6.02	8.56	13.49
125	5	141.3	2.77	3.40	6.55	9.53	15.88
150	6	168.3	2.77	3.40	7.11	10.97	18.26
200	8	219.1	2.77	3.76	8.18	12.7
250	10	273.1	3.40	4.19	9.27	12.7
300	12	323.9	3.96	4.57	9.53	12.7
350	14	355.6	3.96	4.78	9.53	12.7
400	16	406.4	4.19	4.78	9.53	12.7
450	18	457	4.19	4.78	9.53	12.7
500	20	508	4.78	5.54	9.53	12.7
550	22	559	4.78	5.54
600	24	610	5.54	6.35	9.53	12.7
650	26	660
700	28	711
750	30	762	6.35	7.92

ASME B36.19 SCH 5S Stainless Steel Pipe Dimension and Weight

Dimensions of SCH 5S Stainless Steel Pipe Nominal Weights (Masses), PLain End
NPS (DN)	Outside Diameter, (inch)	Outside Diameter, (mm)	Wall Thickness (inch)	Wall Thickness (mm)	Plain End Weight (Mass) (Ib/ft)	Plain End Weight (Mass) (kg/m)
1/8(6)	0.405	10.29	...	...	...	...
1/4(8)	0.54	13.72	...	...	...	...
3/8(10)	0.675	17.14	...	...	...	...
1/2(15)	0.840	21.34	0.065	1.65	0.54	0.80
3/4(20)	1.050	26.67	0.065	1.65	0.68	1.02
1(25)	1.315	33.40	0.065	1.65	0.87	1.29
1 1/4 (32)	1.660	42.16	0.065	1.65	1.11	1.65
1 1/2 (40)	1.900	48.26	0.065	1.65	1.28	1.90
2(50)	2.375	60.32	0.065	1.65	1.61	2.39
2 1/2(65)	2.875	73.02	0.083	2.11	2.48	3.69
3(80)	3.500	88.90	0.083	2.11	3.03	4.52
3 1/2(90)	4.000	101.60	0.083	2.11	3.48	5.18
4(100)	4.500	114.30	0.083	2.11	3.92	5.84
5(125)	5.563	141.30	0.109	2.77	6.36	9.46
6(150)	6.625	168.28	0.109	2.77	7.59	11.31
8(200)	8.625	219.08	0.109	2.77	9.92	14.78
10(250)	10.75	273.0	0.134	3.40	15.21	22.61
12(300)	12.75	323.8	0.156	3.96	21.00	31.24
14(350)	14.00	355.6	0.156	3.96	23.09	34.34
16(400)	16.00	406.4	0.165	4.19	27.93	41.56
18(450)	18.00	457.2	0.165	4.19	31.46	46.81
20(500)	20.00	508.0	0.188	4.78	39.82	59.32
22(550)	22.00	558.8	0.188	4.78	43.84	65.31
24(600)	24.00	609.6	0.218	5.54	55.42	82.53
30(750)	30.00	762.0	0.250	6.35	79.51	118.34

GENERAL NOTES:

(a) 1 in. = 25.4 mm.

(b) 1 lb/t = 1.4882 kg/m.

(c) Weights (masses) are given in pounds per linear foot (kilograms per meter) and are for carbon steel pipe with plain ends.

(d) The different grades of stainless steel permit considerable variations in weight (mass). The ferritic stainless steels may be about 5% less, and the austenitic stainless steels about 2% greater, than the values shown in this table, which are based on weights (masses) for carbon steel.

ASME B36.19 SCH 40S Stainless Steel Pipe Dimension and Weight

NPS (DN)	Outside Diameter, (inch)	Outside Diameter, (mm)	Wall Thickness (inch)	Wall Thickness (mm)	Plain End Weight (Mass) (Ib/ft)	Plain End Weight (Mass) (kg/m)
1/8(6)	0.405	10.29	0.068	1.73	0.24	0.37
1/4(8)	0.54	13.72	0.088	2.24	0.43	0.63
3/8(10)	0.675	17.14	0.091	2.31	0.57	0.84
1/2(15)	0.840	21.34	0.109	2.77	0.85	1.27
3/4(20)	1.050	26.67	0.113	2.87	1.13	1.68
1(25)	1.315	33.40	0.133	3.38	1.68	2.50
1 1/4 (32)	1.660	42.16	0.14	3.56	2.27	3.39
1 1/2 (40)	1.900	48.26	0.145	3.68	2.72	4.05
2(50)	2.375	60.32	0.154	3.91	3.66	5.44
2 1/2(65)	2.875	73.02	0.203	5.16	5.80	8.64
3(80)	3.500	88.90	0.216	5.49	7.58	11.29
3 1/2(90)	4.000	101.60	0.226	5.74	9.12	13.57
4(100)	4.500	114.30	0.237	6.02	10.80	16.08
5(125)	5.563	141.30	0.258	6.55	14.63	21.77
6(150)	6.625	168.28	0.28	7.11	18.99	28.26
8(200)	8.625	219.08	0.322	8.18	28.58	42.55
10(250)	10.75	273.0	0.365	9.27	40.52	60.29
12(300)	12.75	323.8	0.375	9.52	49.61	73.79
14(350)	14	355.6	0.375	9.52	54.62	81.25
16(400)	16	406.4	0.375	9.52	62.64	93.18
18(450)	18	457.2	0.375	9.52	70.65	105.17
20(500)	20	508.0	0.375	9.52	78.67	117.03
22(550)	22	558.8	...	...	...	...
24(600)	24	609.6	0.375	9.52	94.71	140.89
30(750)	30	762.0	...	...	...	...

GENERAL NOTES:

(a) 1 in. = 25.4 mm.

(b) 1 lb/t = 1.4882 kg/m.

(c) Weights (masses) are given in pounds per linear foot (kilograms per meter) and are for carbon steel pipe with plain ends.

(d) The different grades of stainless steel permit considerable variations in weight (mass). The ferritic stainless steels may be about 5% less, and the austenitic stainless steels about 2% greater, than the values shown in this table, which are based on weights (masses) for carbon steel.

NOTES:

(1) These wall thicknesses do not permit threading in accordance with ASME B1.20.1.

(2) These dimensions do not conform to ASME B36.10.

ASME B36.19 SCH 80S Stainless Steel Pipe Dimension and Weight

NPS (DN)	Outside Diameter, (inch)	Outside Diameter, (mm)	Wall Thickness (inch)	Wall Thickness (mm)	Plain End Weight (Mass) (Ib/ft)	Plain End Weight (Mass) (kg/m)
1/8(6)	0.405	10.29	0.095	2.41	0.31	0.47
1/4(8)	0.54	13.72	0.119	3.02	0.54	0.80
3/8(10)	0.675	17.14	0.126	3.20	0.74	1.10
1/2(15)	0.840	21.34	0.147	3.73	1.09	1.62
3/4(20)	1.050	26.67	0.154	3.91	1.48	2.19
1(25)	1.315	33.40	0.179	4.55	2.17	3.24
1 1/4 (32)	1.660	42.16	0.191	4.85	3	4.46
1 1/2 (40)	1.900	48.26	0.2	5.08	3.63	5.41
2(50)	2.375	60.32	0.218	5.54	5.03	7.48
2 1/2(65)	2.875	73.02	0.276	7.01	7.67(	11.41
3(80)	3.500	88.90	0.3	7.62	10.26	15.27
3 1/2(90)	4.000	101.60	0.318	8.08	12.52	18.64
4(100)	4.500	114.30	0.337	8.56	15	22.32
5(125)	5.563	141.30	0.375	9.52	20.8	30.94
6(150)	6.625	168.28	0.432	10.97	28.6	42.56
8(200)	8.625	219.08	0.5	12.70	43.43	64.64
10(250)	10.75	273.0	0.5	12.70	54.79	81.53
12(300)	12.75	323.8	0.5	12.70	65.48	97.44
14(350)	14	355.6	0.5	12.70	72.16	107.40
16(400)	16	406.4	0.5	12.70	82.85	123.31
18(450)	18	457.2	0.5	12.70	93.54	139.16
20(500)	20	508.0	0.5	12.70	104.23	155.13
22(550)	22	558.8	...	...	...	...
24(600)	24	609.6	0.5	12.70	125.61	186.95
30(750)	30	762.0	...	...	...	...

GENERAL NOTES:

(a) 1 in. = 25.4 mm.

(b) 1 lb/t = 1.4882 kg/m.

(c) Weights (masses) are given in pounds per linear foot (kilograms per meter) and are for carbon steel pipe with plain ends.

(d) The different grades of stainless steel permit considerable variations in weight (mass). The ferritic stainless steels may be about 5% less, and the austenitic stainless steels about 2% greater, than the values shown in this table, which are based on weights (masses) for carbon steel.

NOTES:

(1) These wall thicknesses do not permit threading in accordance with ASME B1.20.1.

(2) These dimensions do not conform to ASME B36.10.

ASME B36.19 SCH 160S Stainless Steel Pipe Dimension and Weight

NPS (DN)	Outside Diameter, (inch)	Outside Diameter, (mm)	Wall Thickness (inch)	Wall Thickness (mm)	Plain End Weight (Mass) (Ib/ft)	Plain End Weight (Mass) (kg/m)
1/8(6)	0.405	10.29	0.124	3.15	0.37	0.55
1/4(8)	0.54	13.72	0.145	3.68	0.61	0.91
3/8(10)	0.675	17.14	0.158	4.01	0.87	1.30
1/2(15)	0.840	21.34	0.188	4.78	1.31	1.95
3/4(20)	1.050	26.67	0.219	5.56	1.95	2.89
1(25)	1.315	33.40	0.25	6.35	2.85	4.24
1 1/4 (32)	1.660	42.16	0.25	6.35	3.77	5.61
1 1/2 (40)	1.900	48.26	0.281	7.14	4.86	7.24
2(50)	2.375	60.32	0.344	8.74	7.47	11.12
2 1/2(65)	2.875	73.02	0.375	9.52	10.02	14.91
3(80)	3.500	88.90	0.438	11.13	14.34	21.35
4(100)	4.500	114.30	0.531	13.49	22.53	33.54
5(125)	5.563	141.30	0.625	15.88	32.99	49.12
6(150)	6.625	168.28	0.719	18.26	45.39	67.56

GENERAL NOTES:

(a) 1 in. = 25.4 mm.

(b) 1 lb/t = 1.4882 kg/m.

(c) Weights (masses) are given in pounds per linear foot (kilograms per meter) and are for carbon steel pipe with plain ends.

(d) The different grades of stainless steel permit considerable variations in weight (mass). The ferritic stainless steels may be about 5% less, and the austenitic stainless steels about 2% greater, than the values shown in this table, which are based on weights (masses) for carbon steel.

NOTES:

(1) These wall thicknesses do not permit threading in accordance with ASME B1.20.1.

(2) These dimensions do not conform to ASME B36.10.

ASME B36.19 Pipe Dimension, Wall Thickness and Weight